Lab tests CPT 86618 Inpatient — admitted to hospital

Lyme disease test cost in Riverside, CA — inpatient

In Riverside-San Bernardino-Ontario, CA, 9 hospitals list a cash price for Lyme disease antibody test as an inpatient: from $11.90 to $124.28, with a median of $16.30. The lowest listed price is at Palo Verde Hospital — $4.40 less than the median here. Across California, the median is $30.80 at 79 hospitals.

Cash prices at 9 facilities across 8 cities for code 86618, as an inpatient (admitted to hospital) . Collected Sep 23, 2026; the hospital files themselves were last updated between Apr 1, 2026 and Sep 2, 2026.

Lowest$11.90Palo Verde Hospital
Median$16.30half pay less
Highest$124.28in this market
Difference10.4×highest vs lowest

Where each hospital's price falls

Each dot is one hospital's cash price on a scale from the lowest to the highest in Riverside-San Bernardino-Ontario, CA.

median
Lowest $11.90Highest $124.28

Hospitals, cheapest first

HospitalCash price List priceInsurers payOff listFile date
Palo Verde Hospital lowest Blythe, CA · (760) 922-4115 Lyme IgG/IgM LC $11.90 $15.87 — 25% Jul 1, 2026
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Loma Linda University Medical Center Loma Linda, CA · (909) 558-4000 HC SOM LYME DISEASE AB SERUM $16.30 $16.30 $3.26–$14.67 — Sep 2, 2026
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Loma Linda University Childrens Hospital Loma Linda, CA · (909) 558-8000 HC SOM LYME DISEASE AB SERUM $16.30 $16.30 $3.26–$13.86 — Sep 2, 2026
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Loma Linda University Medical Center - Murrieta Murrieta, CA · (951) 290-4000 HC SOM LYME DISEASE AB SERUM $16.30 $16.30 $2.95–$12.22 — Sep 2, 2026
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Loma Linda University Behavioral Medicine Center Redlands, CA HC SOM LYME DISEASE AB SERUM $16.30 $16.30 $8.96–$13.04 — Aug 31, 2026
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Palo Verde Hospital Blythe, CA · (760) 922-4115 Lyme Disease Total Antibody with reflex LC $29.76 $39.68 — 25% Jul 1, 2026
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St Mary Medical Center Apple Valley, CA · (760) 242-2311 HC LYME DISEASE ANTIBODY $61.08 $127.25 — 52% Apr 1, 2026
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Kaiser Foundation Hospital - Moreno Valley Moreno Valley, CA · (951) 251-6530 ANTIBODY BORRELIA BURGDORFERI LYME DISEASE $124.28 $239.00 $12.00–$35.00 48% —
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Kaiser Foundation Hospital - Riverside Riverside, CA · (951) 353-2000 ANTIBODY BORRELIA BURGDORFERI LYME DISEASE $124.28 $239.00 $12.00–$35.00 48% —
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Kaiser Foundation Hospital - Fontana Fontana, CA · (909) 427-5000 ANTIBODY BORRELIA BURGDORFERI LYME DISEASE $124.28 $239.00 $12.00–$35.00 48% —
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Inpatient: lowest $11.90, median $16.30, highest $124.28 — a 10.4× difference within the same market.

As an outpatient, the same code is billed by 13 facilities here, median $17.00 — that is the price to compare if you are not being admitted.

Cash or insurance?

At 0 of 7 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.

What it is

This blood test looks for antibodies to the bacteria that cause Lyme disease. A positive first test is confirmed with a second test.

What the price covers

The price usually covers running the test. The blood draw (36415) is often billed as a separate line.

4 rows held back from this comparison

They are priced below $1 or below a tenth of the national median for code 86618 ($75.50). Such a line is almost always a physician's fee billed separately, an assistant's share or a placeholder — a real charge, but not the price of the procedure itself.

Riverside University Medical Center Moreno Valley, CAHC Lab Ref Lyme Disease Ab Igm CSF $6.48 file
Riverside University Medical Center Moreno Valley, CAHC Lab Ref Lyme Disease Ab Igm CSF $6.48 file
Riverside University Medical Center Moreno Valley, CAHC Qu Lyme Disease Ab Igg CSF $7.13 file
Riverside University Medical Center Moreno Valley, CAHC Qu Lyme Disease Ab Igg CSF $7.13 file